城市天然气管网巡检和抢修协同动态调配策略

Dynamic coordination deployment strategy for inspection and repair of urban natural gas pipeline network

城市天然气管网巡检和管网事故发生后的抢修调度都是保障天然气管网安全至关重要的任务,但目前缺少同时考虑巡检工作分配和应急抢修调度之间相关性的劳动组织架构与应急管理的动态优化方法。为此本文提出了一种工作人员协同完成天然气管网巡检和抢修的检修区域一体化管理模式,基于此及实际场景不确定性和管网抢修时长不确定性,构建以最小抢修响应时间和最大调度偏好为目标的动态协同调度模型。在获取实时道路行程时间的基础上,考虑抢修任务新增、抢修任务撤销和抢修任务未按时完成3种动态事件对调配策略的影响,结合滚动时域法和改进双基因位传算法完善动态算法框架,并用杭州燃气管网事故抢修历史数据进行验证分析。结果表明,检修区域一体化下的协同调配策略在应急抢修响应时间和员工劳动效率方面都有较大提升。

The inspection and emergency repair scheduling of urban natural gas pipeline network are the most important tasks to ensure the safety of natural gas pipeline network.However,there is a lack of dynamic optimization method of labor organization structure and emergency management considering the correlation between inspection work allocation and emergency repair scheduling.In order to solve this problem,an integrated maintenance area management model is proposed,in which the staffs cooperate to complete the inspection and repair of natural gas pipeline network.Based on this model,considering the uncertainty of actual scene and pipeline repair time,a dynamic collaborative scheduling model with the minimum repair response time and maximum scheduling preference as the objectives is constructed.On the basis of obtaining real-time road travel time,considering the impact of three dynamic events on the deployment strategy,which are the addition of repair task,the cancellation of repair task,and the failure to complete repair task on time,the dynamic algorithm framework is improved by combining the rolling time domain method and the improved double gene bit transfer algorithm,and the historical data of Hangzhou gas pipeline network accident repair is used for verification and analysis.The results show that the coordinated deployment strategy under the regional integration of maintenance can greatly improve the response time of emergency repair and the labor efficiency of employees.